157052250 has 128 divisors (see below), whose sum is σ = 444787200. Its totient is φ = 40996800.

The previous prime is 157052249. The next prime is 157052251. The reversal of 157052250 is 52250751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157052249) and next prime (157052251).

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

It is not an unprimeable number, because it can be changed into a prime (157052251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 357531 + ... + 357969.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^157052250 is an apocalyptic number.

157052250 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 157052250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222393600).

157052250 is an abundant number, since it is smaller than the sum of its proper divisors (287734950).

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

157052250 is a wasteful number, since it uses less digits than its factorization.

157052250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 502 counting only the distinct ones).

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

The square root of 157052250 is about 12532.0489146827. The cubic root of 157052250 is about 539.5289101337.

It can be divided in two parts, 15705 and 2250, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 157052250 in words is "one hundred fifty-seven million, fifty-two thousand, two hundred fifty".