55767290 has 32 divisors (see below), whose sum is σ = 104906880. Its totient is φ = 21317184.

The previous prime is 55767281. The next prime is 55767301. The reversal of 55767290 is 9276755.

It is a super-3 number, since 3×55767290³ (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, 28937 + ... + 30803.

It is an arithmetic number, because the mean of its divisors is an integer number (3278340).

Almost surely, 2^55767290 is an apocalyptic number.

55767290 is a deficient number, since it is larger than the sum of its proper divisors (49139590).

55767290 is a wasteful number, since it uses less digits than its factorization.

55767290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 55767290 is about 7467.7499958153. The cubic root of 55767290 is about 382.0555505227.

The spelling of 55767290 in words is "fifty-five million, seven hundred sixty-seven thousand, two hundred ninety".