61054631 has 8 divisors (see below), whose sum is σ = 67031184. Its totient is φ = 55149120.

The previous prime is 61054607. The next prime is 61054649. The reversal of 61054631 is 13645016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61054631 is a prime.

It is a super-2 number, since 2×61054631² = 7455335933092322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61054631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61054681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15950 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (8378898).

Almost surely, 2^61054631 is an apocalyptic number.

61054631 is a deficient number, since it is larger than the sum of its proper divisors (5976553).

61054631 is a wasteful number, since it uses less digits than its factorization.

61054631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35521.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61054631 is about 7813.7462845936. The cubic root of 61054631 is about 393.7671995174.

Adding to 61054631 its reverse (13645016), we get a palindrome (74699647).

The spelling of 61054631 in words is "sixty-one million, fifty-four thousand, six hundred thirty-one".