61541624 has 16 divisors (see below), whose sum is σ = 115479000. Its totient is φ = 30747232.

The previous prime is 61541621. The next prime is 61541647. The reversal of 61541624 is 42614516.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61541621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13619 + ... + 17565.

Almost surely, 2^61541624 is an apocalyptic number.

It is an amenable number.

61541624 is a deficient number, since it is larger than the sum of its proper divisors (53937376).

61541624 is a wasteful number, since it uses less digits than its factorization.

61541624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5898 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 61541624 is about 7844.8469711015. The cubic root of 61541624 is about 394.8113696368.

The spelling of 61541624 in words is "sixty-one million, five hundred forty-one thousand, six hundred twenty-four".