55745088 has 224 divisors, whose sum is σ = 185318400. Its totient is φ = 14432256.

The previous prime is 55745087. The next prime is 55745089. The reversal of 55745088 is 88054755.

It is an interprime number because it is at equal distance from previous prime (55745087) and next prime (55745089).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×55745088² = 6215029672255488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (55745087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 944803 + ... + 944861.

Almost surely, 2^55745088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55745088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92659200).

55745088 is an abundant number, since it is smaller than the sum of its proper divisors (129573312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55745088 is a wasteful number, since it uses less digits than its factorization.

55745088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 55745088 is about 7466.2633224391. The cubic root of 55745088 is about 382.0048426421.

The spelling of 55745088 in words is "fifty-five million, seven hundred forty-five thousand, eighty-eight".