55002151 has 4 divisors (see below), whose sum is σ = 55037704. Its totient is φ = 54966600.

The previous prime is 55002149. The next prime is 55002179. The reversal of 55002151 is 15120055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55002151 - 2¹ = 55002149 is a prime.

It is a super-2 number, since 2×55002151² = 6050473229253602, which contains 22 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 (55002251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15345 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (13759426).

Almost surely, 2^55002151 is an apocalyptic number.

55002151 is a deficient number, since it is larger than the sum of its proper divisors (35553).

55002151 is a wasteful number, since it uses less digits than its factorization.

55002151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35552.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 55002151 is about 7416.3435060682. The cubic root of 55002151 is about 380.3002036786.

The spelling of 55002151 in words is "fifty-five million, two thousand, one hundred fifty-one".