55890902 has 4 divisors (see below), whose sum is σ = 83836356. Its totient is φ = 27945450.

The previous prime is 55890889. The next prime is 55890911. The reversal of 55890902 is 20909855.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13972724 + ... + 13972727.

It is an arithmetic number, because the mean of its divisors is an integer number (20959089).

Almost surely, 2^55890902 is an apocalyptic number.

55890902 is a deficient number, since it is larger than the sum of its proper divisors (27945454).

55890902 is a wasteful number, since it uses less digits than its factorization.

55890902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27945453.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 55890902 is about 7476.0218030715. The cubic root of 55890902 is about 382.3376262695.

The spelling of 55890902 in words is "fifty-five million, eight hundred ninety thousand, nine hundred two".