55507461 has 4 divisors (see below), whose sum is σ = 74009952. Its totient is φ = 37004972.

The previous prime is 55507433. The next prime is 55507471. The reversal of 55507461 is 16470555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55507461 - 2⁵ = 55507429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55507411) 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, 9251241 + ... + 9251246.

It is an arithmetic number, because the mean of its divisors is an integer number (18502488).

Almost surely, 2^55507461 is an apocalyptic number.

It is an amenable number.

55507461 is a deficient number, since it is larger than the sum of its proper divisors (18502491).

55507461 is a wasteful number, since it uses less digits than its factorization.

55507461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18502490.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55507461 is about 7450.3329455804. The cubic root of 55507461 is about 381.4612733498.

The spelling of 55507461 in words is "fifty-five million, five hundred seven thousand, four hundred sixty-one".