157049550 has 96 divisors (see below), whose sum is σ = 494611200. Its totient is φ = 35894880.

The previous prime is 157049521. The next prime is 157049561. The reversal of 157049550 is 55940751.

157049550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157049550² = 49329122310405000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1141 + ... + 17759.

It is an arithmetic number, because the mean of its divisors is an integer number (5152200).

Almost surely, 2^157049550 is an apocalyptic number.

157049550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157049550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247305600).

157049550 is an abundant number, since it is smaller than the sum of its proper divisors (337561650).

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

157049550 is a wasteful number, since it uses less digits than its factorization.

157049550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16647 (or 16636 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 157049550 is about 12531.9411904142. The cubic root of 157049550 is about 539.5258183041.

The spelling of 157049550 in words is "one hundred fifty-seven million, forty-nine thousand, five hundred fifty".