155089974253 has 2 divisors, whose sum is σ = 155089974254. Its totient is φ = 155089974252.

The previous prime is 155089974197. The next prime is 155089974283. The reversal of 155089974253 is 352479980551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150325247524 + 4764726729 = 387718^2 + 69027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155089974253 is a prime.

It is a super-2 number, since 2×155089974253² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155089974283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77544987126 + 77544987127.

It is an arithmetic number, because the mean of its divisors is an integer number (77544987127).

Almost surely, 2^155089974253 is an apocalyptic number.

It is an amenable number.

155089974253 is a deficient number, since it is larger than the sum of its proper divisors (1).

155089974253 is an equidigital number, since it uses as much as digits as its factorization.

155089974253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608000, while the sum is 58.

The spelling of 155089974253 in words is "one hundred fifty-five billion, eighty-nine million, nine hundred seventy-four thousand, two hundred fifty-three".