531402455155 has 64 divisors (see below), whose sum is σ = 752242982400. Its totient is φ = 355283712000.

The previous prime is 531402455123. The next prime is 531402455191. The reversal of 531402455155 is 551554204135.

It is not a de Polignac number, because 531402455155 - 2⁵ = 531402455123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253168296 + ... + 253170394.

It is an arithmetic number, because the mean of its divisors is an integer number (11753796600).

Almost surely, 2^531402455155 is an apocalyptic number.

531402455155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531402455155 is a deficient number, since it is larger than the sum of its proper divisors (220840527245).

531402455155 is a wasteful number, since it uses less digits than its factorization.

531402455155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 531402455155 in words is "five hundred thirty-one billion, four hundred two million, four hundred fifty-five thousand, one hundred fifty-five".