55498757 has 4 divisors (see below), whose sum is σ = 55517376. Its totient is φ = 55480140.

The previous prime is 55498741. The next prime is 55498777. The reversal of 55498757 is 75789455.

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 55498757 - 2⁴ = 55498741 is a prime.

It is a super-2 number, since 2×55498757² = 6160224057090098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55498777) 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, 3719 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (13879344).

Almost surely, 2^55498757 is an apocalyptic number.

It is an amenable number.

55498757 is a deficient number, since it is larger than the sum of its proper divisors (18619).

55498757 is a wasteful number, since it uses less digits than its factorization.

55498757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18618.

The product of its digits is 1764000, while the sum is 50.

The square root of 55498757 is about 7449.7487877109. The cubic root of 55498757 is about 381.4413336130.

The spelling of 55498757 in words is "fifty-five million, four hundred ninety-eight thousand, seven hundred fifty-seven".