253115302 has 24 divisors (see below), whose sum is σ = 439299000. Its totient is φ = 108995040.

The previous prime is 253115297. The next prime is 253115323. The reversal of 253115302 is 203511352.

It is a super-2 number, since 2×253115302² = 128134712213102408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22927 + ... + 32122.

It is an arithmetic number, because the mean of its divisors is an integer number (18304125).

Almost surely, 2^253115302 is an apocalyptic number.

253115302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253115302 is a deficient number, since it is larger than the sum of its proper divisors (186183698).

253115302 is a wasteful number, since it uses less digits than its factorization.

253115302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55092 (or 55081 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 253115302 is about 15909.5977950418. The cubic root of 253115302 is about 632.5664202460.

Adding to 253115302 its reverse (203511352), we get a palindrome (456626654).

The spelling of 253115302 in words is "two hundred fifty-three million, one hundred fifteen thousand, three hundred two".