55432401 has 8 divisors (see below), whose sum is σ = 75907584. Its totient is φ = 35956080.

The previous prime is 55432397. The next prime is 55432423. The reversal of 55432401 is 10423455.

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

It is not a de Polignac number, because 55432401 - 2² = 55432397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55432441) 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, 249585 + ... + 249806.

It is an arithmetic number, because the mean of its divisors is an integer number (9488448).

Almost surely, 2^55432401 is an apocalyptic number.

It is an amenable number.

55432401 is a deficient number, since it is larger than the sum of its proper divisors (20475183).

55432401 is a wasteful number, since it uses less digits than its factorization.

55432401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499431.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55432401 is about 7445.2938827154. The cubic root of 55432401 is about 381.2892520367.

Adding to 55432401 its reverse (10423455), we get a palindrome (65855856).

The spelling of 55432401 in words is "fifty-five million, four hundred thirty-two thousand, four hundred one".