55901370 has 96 divisors (see below), whose sum is σ = 159007104. Its totient is φ = 12320640.

The previous prime is 55901369. The next prime is 55901387. The reversal of 55901370 is 7310955.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201672 + ... + 201948.

It is an arithmetic number, because the mean of its divisors is an integer number (1656324).

Almost surely, 2^55901370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55901370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79503552).

55901370 is an abundant number, since it is smaller than the sum of its proper divisors (103105734).

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

55901370 is a wasteful number, since it uses less digits than its factorization.

55901370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 55901370 is about 7476.7218752606. The cubic root of 55901370 is about 382.3614945575.

The spelling of 55901370 in words is "fifty-five million, nine hundred one thousand, three hundred seventy".