53779290 has 64 divisors (see below), whose sum is σ = 138039552. Its totient is φ = 13376000.

The previous prime is 53779289. The next prime is 53779301. The reversal of 53779290 is 9297735.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27340 + ... + 29240.

It is an arithmetic number, because the mean of its divisors is an integer number (2156868).

Almost surely, 2^53779290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53779290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69019776).

53779290 is an abundant number, since it is smaller than the sum of its proper divisors (84260262).

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

53779290 is a wasteful number, since it uses less digits than its factorization.

53779290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 53779290 is about 7333.4364386691. The cubic root of 53779290 is about 377.4606540575.

The spelling of 53779290 in words is "fifty-three million, seven hundred seventy-nine thousand, two hundred ninety".