55153590 has 16 divisors (see below), whose sum is σ = 132368688. Its totient is φ = 14707616.

The previous prime is 55153589. The next prime is 55153591. The reversal of 55153590 is 9535155.

It is an interprime number because it is at equal distance from previous prime (55153589) and next prime (55153591).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55153591) 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, 919197 + ... + 919256.

It is an arithmetic number, because the mean of its divisors is an integer number (8273043).

Almost surely, 2^55153590 is an apocalyptic number.

55153590 is an abundant number, since it is smaller than the sum of its proper divisors (77215098).

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

55153590 is a wasteful number, since it uses less digits than its factorization.

55153590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838463.

The product of its (nonzero) digits is 16875, while the sum is 33.

The square root of 55153590 is about 7426.5463036327. The cubic root of 55153590 is about 380.6489143222.

The spelling of 55153590 in words is "fifty-five million, one hundred fifty-three thousand, five hundred ninety".