2455215531 has 32 divisors (see below), whose sum is σ = 3596617728. Its totient is φ = 1483077120.

The previous prime is 2455215491. The next prime is 2455215541. The reversal of 2455215531 is 1355125542.

It is not a de Polignac number, because 2455215531 - 2¹⁰ = 2455214507 is a prime.

It is a super-2 number, since 2×2455215531² = 12056166607327223922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2455215492 and 2455215501.

It is not an unprimeable number, because it can be changed into a prime (2455215541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307516 + ... + 315398.

It is an arithmetic number, because the mean of its divisors is an integer number (112394304).

Almost surely, 2^2455215531 is an apocalyptic number.

2455215531 is a deficient number, since it is larger than the sum of its proper divisors (1141402197).

2455215531 is a wasteful number, since it uses less digits than its factorization.

2455215531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8131.

The product of its digits is 30000, while the sum is 33.

The square root of 2455215531 is about 49550.1314932665. The cubic root of 2455215531 is about 1349.0556781490.

The spelling of 2455215531 in words is "two billion, four hundred fifty-five million, two hundred fifteen thousand, five hundred thirty-one".