157758252 has 24 divisors (see below), whose sum is σ = 368314800. Its totient is φ = 52555776.

The previous prime is 157758247. The next prime is 157758259. The reversal of 157758252 is 252857751.

157758252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (157758259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29824 + ... + 34712.

It is an arithmetic number, because the mean of its divisors is an integer number (15346450).

Almost surely, 2^157758252 is an apocalyptic number.

157758252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157758252 is an abundant number, since it is smaller than the sum of its proper divisors (210556548).

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

157758252 is a wasteful number, since it uses less digits than its factorization.

157758252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585 (or 7583 counting only the distinct ones).

The product of its digits is 196000, while the sum is 42.

The square root of 157758252 is about 12560.1851897175. The cubic root of 157758252 is about 540.3361555797.

The spelling of 157758252 in words is "one hundred fifty-seven million, seven hundred fifty-eight thousand, two hundred fifty-two".