53772378 has 32 divisors (see below), whose sum is σ = 117581760. Its totient is φ = 16258560.

The previous prime is 53772319. The next prime is 53772401. The reversal of 53772378 is 87327735.

It is a super-3 number, since 3×53772378³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57418 + ... + 58346.

It is an arithmetic number, because the mean of its divisors is an integer number (3674430).

Almost surely, 2^53772378 is an apocalyptic number.

53772378 is an abundant number, since it is smaller than the sum of its proper divisors (63809382).

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

53772378 is a wasteful number, since it uses less digits than its factorization.

53772378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822.

The product of its digits is 246960, while the sum is 42.

The square root of 53772378 is about 7332.9651574244. The cubic root of 53772378 is about 377.4444822819. Note that the first 4 decimals are identical.

The spelling of 53772378 in words is "fifty-three million, seven hundred seventy-two thousand, three hundred seventy-eight".