1055015531 has 2 divisors, whose sum is σ = 1055015532. Its totient is φ = 1055015530.

The previous prime is 1055015519. The next prime is 1055015537. The reversal of 1055015531 is 1355105501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055015531 is a prime.

It is a super-2 number, since 2×1055015531² = 2226115541302423922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055015531.

It is not a weakly prime, because it can be changed into another prime (1055015537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527507765 + 527507766.

It is an arithmetic number, because the mean of its divisors is an integer number (527507766).

Almost surely, 2^1055015531 is an apocalyptic number.

1055015531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055015531 is an equidigital number, since it uses as much as digits as its factorization.

1055015531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1055015531 is about 32481.0026169144. The cubic root of 1055015531 is about 1018.0121257287.

The spelling of 1055015531 in words is "one billion, fifty-five million, fifteen thousand, five hundred thirty-one".