5415952981 has 4 divisors (see below), whose sum is σ = 5466569472. Its totient is φ = 5365336492.

The previous prime is 5415952963. The next prime is 5415952987. The reversal of 5415952981 is 1892595145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5415952981 - 2¹³ = 5415944789 is a prime.

It is a super-2 number, since 2×5415952981² = 58665093384805572722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415952987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25308085 + ... + 25308298.

It is an arithmetic number, because the mean of its divisors is an integer number (1366642368).

Almost surely, 2^5415952981 is an apocalyptic number.

It is an amenable number.

5415952981 is a deficient number, since it is larger than the sum of its proper divisors (50616491).

5415952981 is a wasteful number, since it uses less digits than its factorization.

5415952981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50616490.

The product of its digits is 648000, while the sum is 49.

The square root of 5415952981 is about 73593.1585203407. The cubic root of 5415952981 is about 1756.1366036366.

The spelling of 5415952981 in words is "five billion, four hundred fifteen million, nine hundred fifty-two thousand, nine hundred eighty-one".