157255020 has 288 divisors, whose sum is σ = 565044480. Its totient is φ = 36391680.

The previous prime is 157255019. The next prime is 157255031. The reversal of 157255020 is 20552751.

It is a happy number.

157255020 is a `hidden beast` number, since 157 + 2 + 5 + 502 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1200355 + ... + 1200485.

It is an arithmetic number, because the mean of its divisors is an integer number (1961960).

Almost surely, 2^157255020 is an apocalyptic number.

157255020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157255020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282522240).

157255020 is an abundant number, since it is smaller than the sum of its proper divisors (407789460).

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

157255020 is a wasteful number, since it uses less digits than its factorization.

157255020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 157255020 is about 12540.1363628949. The cubic root of 157255020 is about 539.7610053518.

The spelling of 157255020 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, twenty".