55153490 has 16 divisors (see below), whose sum is σ = 113458752. Its totient is φ = 18909744.

The previous prime is 55153481. The next prime is 55153493. The reversal of 55153490 is 9435155.

It is not an unprimeable number, because it can be changed into a prime (55153493) 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, 393884 + ... + 394023.

It is an arithmetic number, because the mean of its divisors is an integer number (7091172).

Almost surely, 2^55153490 is an apocalyptic number.

55153490 is an abundant number, since it is smaller than the sum of its proper divisors (58305262).

55153490 is a wasteful number, since it uses less digits than its factorization.

55153490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787921.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 55153490 is about 7426.5395710250. The cubic root of 55153490 is about 380.6486842682.

The spelling of 55153490 in words is "fifty-five million, one hundred fifty-three thousand, four hundred ninety".