157252755 has 32 divisors (see below), whose sum is σ = 275643648. Its totient is φ = 75920000.

The previous prime is 157252751. The next prime is 157252757. The reversal of 157252755 is 557252751.

It is not a de Polignac number, because 157252755 - 2² = 157252751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157252751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39517 + ... + 43313.

It is an arithmetic number, because the mean of its divisors is an integer number (8613864).

Almost surely, 2^157252755 is an apocalyptic number.

157252755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157252755 is a deficient number, since it is larger than the sum of its proper divisors (118390893).

157252755 is a wasteful number, since it uses less digits than its factorization.

157252755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its digits is 122500, while the sum is 39.

The square root of 157252755 is about 12540.0460525470. The cubic root of 157252755 is about 539.7584138828.

The spelling of 157252755 in words is "one hundred fifty-seven million, two hundred fifty-two thousand, seven hundred fifty-five".