55251022757 has 8 divisors (see below), whose sum is σ = 64432680000. Its totient is φ = 47358019212.

The previous prime is 55251022751. The next prime is 55251022831. The reversal of 55251022757 is 75722015255.

It is not a de Polignac number, because 55251022757 - 2⁴ = 55251022741 is a prime.

It is a super-3 number, since 3×55251022757³ (a number of 33 digits) contains 333 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 (55251022751) 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, 80540507 + ... + 80541192.

It is an arithmetic number, because the mean of its divisors is an integer number (8054085000).

Almost surely, 2^55251022757 is an apocalyptic number.

It is an amenable number.

55251022757 is a deficient number, since it is larger than the sum of its proper divisors (9181657243).

55251022757 is an equidigital number, since it uses as much as digits as its factorization.

55251022757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161081720 (or 161081706 counting only the distinct ones).

The product of its (nonzero) digits is 245000, while the sum is 41.

The spelling of 55251022757 in words is "fifty-five billion, two hundred fifty-one million, twenty-two thousand, seven hundred fifty-seven".