157290550 has 24 divisors (see below), whose sum is σ = 307960200. Its totient is φ = 59604480.

The previous prime is 157290541. The next prime is 157290563. The reversal of 157290550 is 55092751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81835 + ... + 83734.

It is an arithmetic number, because the mean of its divisors is an integer number (12831675).

Almost surely, 2^157290550 is an apocalyptic number.

157290550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157290550 is a deficient number, since it is larger than the sum of its proper divisors (150669650).

157290550 is a wasteful number, since it uses less digits than its factorization.

157290550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165600 (or 165595 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 157290550 is about 12541.5529341466. The cubic root of 157290550 is about 539.8016532632.

The spelling of 157290550 in words is "one hundred fifty-seven million, two hundred ninety thousand, five hundred fifty".