157901550 has 48 divisors (see below), whose sum is σ = 398038512. Its totient is φ = 41414400.

The previous prime is 157901539. The next prime is 157901551. The reversal of 157901550 is 55109751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157901551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522 + ... + 17778.

It is an arithmetic number, because the mean of its divisors is an integer number (8292469).

Almost surely, 2^157901550 is an apocalyptic number.

157901550 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 157901550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199019256).

157901550 is an abundant number, since it is smaller than the sum of its proper divisors (240136962).

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

157901550 is a wasteful number, since it uses less digits than its factorization.

157901550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17333 (or 17328 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 33.

The square root of 157901550 is about 12565.8883490185. Note that the first 3 decimals coincide. The cubic root of 157901550 is about 540.4997089011.

The spelling of 157901550 in words is "one hundred fifty-seven million, nine hundred one thousand, five hundred fifty".