31325051400455 has 8 divisors (see below), whose sum is σ = 37592553984912. Its totient is φ = 25058379584128.

The previous prime is 31325051400449. The next prime is 31325051400481. The reversal of 31325051400455 is 55400415052313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31325051400455 - 2²² = 31325047206151 is a prime.

It is a super-2 number, since 2×31325051400455² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207609074 + ... + 207759903.

It is an arithmetic number, because the mean of its divisors is an integer number (4699069248114).

Almost surely, 2^{31325051400455} is an apocalyptic number.

31325051400455 is a deficient number, since it is larger than the sum of its proper divisors (6267502584457).

31325051400455 is a wasteful number, since it uses less digits than its factorization.

31325051400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415384065.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 31325051400455 its reverse (55400415052313), we get a palindrome (86725466452768).

The spelling of 31325051400455 in words is "thirty-one trillion, three hundred twenty-five billion, fifty-one million, four hundred thousand, four hundred fifty-five".