56402169 has 8 divisors (see below), whose sum is σ = 75744480. Its totient is φ = 37330656.

The previous prime is 56402149. The next prime is 56402179. The reversal of 56402169 is 96120465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56402169 - 2⁷ = 56402041 is a prime.

It is a super-2 number, since 2×56402169² = 6362409335809122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56402119) 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, 67212 + ... + 68045.

It is an arithmetic number, because the mean of its divisors is an integer number (9468060).

Almost surely, 2^56402169 is an apocalyptic number.

It is an amenable number.

56402169 is a deficient number, since it is larger than the sum of its proper divisors (19342311).

56402169 is a wasteful number, since it uses less digits than its factorization.

56402169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135399.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 56402169 is about 7510.1377484038. The cubic root of 56402169 is about 383.4999118914.

The spelling of 56402169 in words is "fifty-six million, four hundred two thousand, one hundred sixty-nine".